I'm building a race bike right now just so I can get rid of it. It has really nice componants. It's still being built. It has Avid Ultimate V brakes, Thomson Seatpost FMF Handlebars and stem. The Frame is a Blue chromoly FMF frame. It's really strong and light go to www.FMFBMX.COM to look at it, its the only blue on under Frames, It also comes with FMF Pro 20" x 1.75 wheelset with tires, as far as fork and crank arms, im still building it, if you know of a fork or crank set you want on it, I can put it on for you. If your inteested. Send me a PM. Thanks. (PS. The bike will probably come out to weigh about 21-23 lbs. Thats light for a chromoly frame.

i dont ride BMX i only ride mountain bike but my friend rides bmx so i want to start and sadly i was wrong about that i meant to write 5 kilograms = 12 lbs he has some sort-of haro i forgot it was like 300

5kg is almost exactly 11lb, and I've never heard of a BMX bike that light either. Lightest one I ever saw was a factory race team special: a junior rocket in Ti with really narrow sewup tires and a Uni micro seat. Even that bike weighed 16lbs, and was unrideable by anyone over 5'/100lbs.

The lightest rideable BMX bikes is most likely Eric Hollys. When he was testing the Eastern Grim Reaper(Ti), and all the other crazy Eastern stuff he has. It was about 18 pounds without pegs, or brakes obviously, but he never rides brakes anyway, but he does ride 4 pegs. He just took them off to see how light it could be. He ended up putting on his pegs, and using the regular Eastern Grim Reaper becasue the bike was to light.

So there you have it, BMX bikes can be as lgith as you want them to be! Soon they will be able to be around that weight w/brakes. It should be pretty crazy.